Grease-gun.



H. 0. & W. L. EKER'N. GREASE GUN.

APPLICATIONIILED MAY 1, 1914.

Patented Feb. 23, 19.15.

2 SHEETS-SHEET l.

H. o. @L W. L. EKERN.

GREASE GUN. APLIGATION FILED MAY 1. 1914.

'Patented Feb. 23, 1915.

2 SHEETS-SHEET 2 idealen l f aiutanti rainer unieron.

' ElllRN AH) VXLIJEAYE L. EKERN, OF FLANDREAU, SOUTH DAKOTA..

GREASE-GUN.

Specification of Letters Patent.

Patented Feb. 23., 1915 Application ledvllllay 1, 1914. Serial No. 835,68;

To @ZZ whom it may concern s'v l Be it known lthatwe, HnLMnR-O. EKERN and VILLIAM L. EKER'N, citizens of the UnitedStates, residing at Flandreau, in the county of Moody and State of-South Dakota.,

.have invented certain new' and useful lmprovements' in Grease-Guns, of which the following is a specilicationi.

Thisinvention relates to grease guns and is lspeciallydesigned for forcibly ejecting heavy oils'and -greases, in predetermined quantities, through a suitable iiexible hose.

An object of the invention is the provision of a device of this character of generally .im-

proved and simplified construction, which shall be inexpensive to manufacture and etiicient and durable in use.

` Another 'object is the provision of simple and efiicient means for indicating the quantity of material ejected `from the grease gun. With these and-other objects in view, the invention consists in the novel construction,

arrangement and combination of parte as will be hereinafter specifically described,-

claimedv and illustrated in the accompanying drawings, in which, j

Figure 1 represents a side elevation., partly broken away, of the grease gun, Fig. 2 represents a horizontal sectional view on the line 2 2 lof Fig. l, Figli representsl a top plan View of the gun, Fig. 4 represents a vertical. sectional' view on the line P-4:. of Fig. 3, and, Fig. 5 represents a side elevation, partly broken away, of the pump' showing the piston in elevated inoperative position.

Referring to the drawing in detail, Wherein similar reference numerals designate corresponding parts throughout the several views, the numeral 5 indicates a. stand having a circular central portion G formed with an annular depression constituting a seat for the cylinder 7 and having radially projecting legs-provided at their outer extremities with suitable casters 8 whereby the grease gun may be quickly and conveniently moved from one place to another. The bottom G of the cylinder is formed with a suitable opening communicating with a. Coupling 9 adapted to be connected with a suitable iievible tube 10 carrying at its opposite extremity a suitable nozzle (not shown). An annular member l1 is secured over the top edge of the cylinder 7 by suitable bolts l2 connecting standing shaft 18 receiving the vertically disposed arm lei of the L-shapedbracket, theother arm of which -is disposed in a horr/ontal plane and reduced at its free extremity. At a point on the annular member 11 dianietrically opposite the shaft 13, an arm 16 is provided thereon carrying a pivoted U-shaped member 17adapted to engage over the reduced end on the arm 15 to lock the latter against pivotal movement on the shaft 13.-

rlhe horizontally disposed arm 15 is provided lcentrally with a vertically disposed threaded opening receiving the threaded rod 18 rotatably mounted in the piston 19 Working within the cylinder 7. The upper end of the piston rod 18 carriesa relatively nonrotatable hand Wheel 2O preferably pro- 'vided' ivith an operating' crank arm 21. For filling lthe cylinder 8 with oil or grease or any other material the U-shaped member 17 is swung outwardly to the position shown in Fig. 5, and the Lshaped bracket 141 is swung outwardly on the shaft 13 to remove the piston 19 from its normal position in alinement with the ,cylinder 7.

A rod I is secured to the top of the piston 19 and extends upwardly in parallel relation to 'the threaded piston rod 1S to a point in proximity to the hand Wheel 20, An indicating sleeve 523 is adjustable on the rod S22 and is provided with suitable markings 24 and is formed in its lower end with longitudinal slits and screw threads. A jam nut Q5 preferably provided with a suitable handle is iittcd on the threaded end of the sleeve '23 and is adapted to be advanced on the threads of said sleeve to lock the latter against longitudinal'sliding movement on the rod 22. A suitable. hand or pointer 26 is rigidly secured to the arm' 15 or formed integral therewith and is slidably engaged with the sleeve For ejecting the grease or other contents in predetermined quantities, as for filling the differential of an automobile or otherl 'l-tentsjof the cylinder 7 is ejected thesleeve 24 may be adjusted on the rod 22 so as to 4accurately indicate 'the'l quantity of the contents ejected at' each operation.4 .5 -WhatWeclai is A' 1- `I`n combination, a cylinder, a piston` .vslidalolev thereimf'and' a rd rotatably secured concentrically to said piston, a second A rod secured to said piston extending paral- 2. In combination, a cylinder, 'a piston" I fslidable insaid cylinder, a piston rod rota-l 'tably secured on said piston, a bar fixed on `said cylindei` and movably receiving said piston rod, a second rod secured' to said piston in spaced parallel relation lto 'said piston rod, an indicating sleeve adjustable longitudinally on said second mentioned rod to indicate the quantity of material ejected. I:

from said cylinder. 4

ln testimony whereof wevaiiixI our signatures in presence of two witnesses.`

A I HELMER o. EKERN.,

- XVILLIAM L. EKERN. Vitness'es: j j

FREDERICK A. WARREN, yOLIVE M. ANDERSON. j i 

